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Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758

2011-08-24 Science
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Release : 2011-08-24
Genre : Science
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Book Rating : 115/5 ( reviews)

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Book Synopsis Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758 by : Patrick WILLIOT

Download or read book Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758 written by Patrick WILLIOT. This book was released on 2011-08-24. Available in PDF, EPUB and Kindle. Book excerpt: The book aims at synthesizing our current knowledge of Acipenser sturio and its management. This species, one of the most widespread sturgeon species all over Western Europe ranging from the Black Sea to the Baltic, is now on the verge of extinction. Major aspects of its biology and management, including mismanagement, are provided in a historic perspective. Similarly, the changes in the restoration programs (in situ and ex situ) initiated in France and Germany are presented. As the species occurred in sympatry with Acipenser oxyrinchus in Germany and Poland and very recently in France as well, a brief outlook on restoration-management programs of A. oxyrinchus are also provided for both North America and Northern European countries, namely Germany and Poland. As conservation-restoration actions go beyond scientific issues, non-governmental stakeholders and marine professional fishermen’s organizations have also been asked to contribute, and the key role of a French-German cooperation plan is underlined. A part of the book is devoted to perspectives. Illustrations of the European sturgeon, mainly in photographs, but also in stamps and paintings, are presented.

Biology, Conservation and Sustainable Development of Sturgeons

2008-11-09 Science
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Release : 2008-11-09
Genre : Science
Kind : eBook
Book Rating : 374/5 ( reviews)

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Book Synopsis Biology, Conservation and Sustainable Development of Sturgeons by : Ramón Carmona

Download or read book Biology, Conservation and Sustainable Development of Sturgeons written by Ramón Carmona. This book was released on 2008-11-09. Available in PDF, EPUB and Kindle. Book excerpt: Sturgeons are considered “living fossils”, sharing many morphological and biological features with ancestral fish. Furthermore, sturgeons are of the utmost interest from an economic perspective, not only for the caviar but for the flesh. However, the wild populations of the majority of the species are at serious risk of extinction all over the world. So, it is urgent to develop strategies for both farming culture and conservation and recovery in natural habitats. This book provides a comprehensive view of the biology and sustainable development of sturgeons putting emphasis on the Southern Europe autochthonous species such as Acipenser nacarii and Acipenser sturio that share geographical distribution. Other relevant species (such as Huso huso, A. oxyrhinchus, A. ruthenus, A. stellatus) and areas (Germany, Russia, North America) are also considered. The contents are organised in three sections: Taxonomy and Biogeography (including the morphological and genetic analyses that clarify the taxonomy and phylogeny of sturgeons, focused on those from Southern Europe), Biology and Aquaculture (where several aspects of the developmental biology, feeding, and reproduction are considered in relation to the improvement of sturgeon farming), and Recovery and Conservation (that collates and analyses different recovery research actions, the ecology of the rivers for restoration as well as the problems related to the trade of caviar).

Symposium on Conservation of the Atlantic Sturgeon Acipenser Sturio L., 1758 in Europe

2000
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Release : 2000
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Book Synopsis Symposium on Conservation of the Atlantic Sturgeon Acipenser Sturio L., 1758 in Europe by : B. Elvira

Download or read book Symposium on Conservation of the Atlantic Sturgeon Acipenser Sturio L., 1758 in Europe written by B. Elvira. This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt:

The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 1 - Biology

2018-04-06 Science
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Release : 2018-04-06
Genre : Science
Kind : eBook
Book Rating : 641/5 ( reviews)

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Book Synopsis The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 1 - Biology by : Patrick Williot

Download or read book The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 1 - Biology written by Patrick Williot. This book was released on 2018-04-06. Available in PDF, EPUB and Kindle. Book excerpt: The biology of the Siberian sturgeon, Acipenser baerii Brandt 1869, has become a very attractive subject of investigation for biologists since the 1980s. This volume 1 is part of a two-volume set devoted to the species, the second of which focuses on farming. The present volume is divided into three parts: Biology and ecology, Biology and physiology of reproduction, and Ecophysiology, i.e. adaptation to the environment. The first part addresses a broad range of topics, such as: the ecology, including a new approach to species-specificity, a new insight on the mineralization of vertebral elements, two approaches to sex determination, transposable elements in the gonads, early ontogeny, olfaction and gustation, nutrition and swimming. The second part includes neurochemical and anatomical descriptions of the central nervous system and an updated version of the oogenesis, the characteristics of both sperm and spermatozoa, and a synthesis on gonadal steroids (synthesis, plasmatic levels and biological activities). In turn, the third part reveals how the physiology of the species changes depending on environmental factors such as oxygen, ammonia, and nitrite. Some fundamental consequences of ammonia are developed (sublethal and lethal levels, effects on gill epithelium and haematology, acid-base balance, on AA and adenyl nucleotides levels in plasma, brain and muscle tissue). In addition, the book includes two methodological chapters dealing with fish dorsal aortic cannulation and respiration physiology.

The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 2 - Farming

2018-04-09 Science
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Release : 2018-04-09
Genre : Science
Kind : eBook
Book Rating : 765/5 ( reviews)

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Book Synopsis The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 2 - Farming by : Patrick Williot

Download or read book The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 2 - Farming written by Patrick Williot. This book was released on 2018-04-09. Available in PDF, EPUB and Kindle. Book excerpt: The Siberian sturgeon, Acipenser baerii Brandt 1869 is the most widely farmed sturgeon species. Continuing from Volume 1, which focuses on the biology of the species, the present Volume 2 in turn examines farming aspects. It is divided into six parts, the first of which deals with reproduction and early ontogenesis, i.e. reproductive cycles, controlled reproduction, sperm cryoconservation, and weaning of larvae. The second covers the growing phase with a focus on food and feeding (management, fish meal replacement, potential endocrine disruptions, usefulness of prebiotics and immunostimulants, and nitrogen excretion). Production-related data are the focus of the third part and include: characteristics (countries, structures of production, evolution in production, economic features) of the gross production of the species (meat and caviar) worldwide, a method for assessing the quality of caviars, off-flavors management, and an example of production of fingerlings for restocking. Part four addresses selected long-term management issues: genetic variability of brood stocks, genome manipulation and sex control, and the advantages of hybrids. The next three chapters constitute the fifth part, which is devoted to health status (immunology and welfare). In closing, the absence of ecological risks of introducing the species in non-native waters is shown using two long-term documented examples (Russia and France). Three methodological chapters round out the volume, covering: in vitro incubation of ovarian follicles, a richly illustrated library of echographies and photos, and a detailed presentation of oxygen demand studies.

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